org.apache.jackrabbit.vault.util.NodeNameComparator Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.jackrabbit.vault.util;
import java.util.Comparator;
import javax.jcr.Node;
import javax.jcr.RepositoryException;
/**
* {@code ItemNameComparator}...
*/
public class NodeNameComparator implements Comparator {
public static final NodeNameComparator INSTANCE = new NodeNameComparator();
public int compare(Node o1, Node o2) {
try {
// sort namespaced first
String n1 = o1.getName().toLowerCase();
String n2 = o2.getName().toLowerCase();
int i1 = n1.indexOf(':');
int i2 = n2.indexOf(':');
if (i1 >=0 && i2 < 0) {
return -1;
} else if (i1 < 0 && i2 >=0) {
return 1;
} else if (n1.equals(n2)) {
// compare indexes for SNS
return o1.getIndex() - o2.getIndex();
} else {
return n1.compareTo(n2);
}
} catch (RepositoryException e) {
throw new IllegalStateException(e);
}
}
}